My advice would be a crested gecko. I've got a few I keep in naturalistic set-ups and they do great. They get fed a water/powder mix diet every other day, and leaving them with fresh food on a Friday would definitely get them through the weekend. Crickets can be given as a supplement, but aren't necessary. They don't need UV light and are happy at room temp. In my experience they are very hardy, easy to keep little geckos and you can usually find adult males for around $30 if you're not looking for something too visually stunning.

Hope this helps!
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-Jaime Palma
Mad-City Constrictors

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